<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
    <style>
        body {
            margin: 0;
            padding: 0;
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            background: #0c0c0c;
        }

        label {
            position: relative;
            width: 80px;
            height: 80px;
            cursor: pointer;
            border-radius: 50%;
        }

        label .btn {
            position: absolute;
            top: 0;
            left: 0;
            display: block;
            width: 100%;
            height: 100%;
            background: #1b1b1b;
            border-radius: 50%;
            box-shadow: 0 3px 4px rgba(0, 0, 0, 1),
                inset 0 -2px 5px rgba(0, 0, 0, 1),
                inset 0 2px 2px rgba(255, 255, 255, 0.5),
                0 0 0 2px #000,
                0 0 0 5px #0c0c0c,
                0 0 0 5.5px #080808;
        }

        label input[type="checkbox"]:checked~.btn {
            box-shadow: 0 0 0 rgba(0, 0, 0, 1),
                inset 0 -2px 5px rgba(0, 0, 0, 1),
                inset 0 1px 1px rgba(255, 255, 255, 0.1),
                0 0 0 2px #000,
                0 0 0 5px #0c0c0c,
                0 0 0 5.5px #00a1ff;
        }

        label input[type="checkbox"] {
            -webkit-appearance: none;
        }

        label .fa {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            font-size: 2.5em;
            color: #0c0c0c;
        }

        label input[type="checkbox"]:checked~.fa {
            color: #00ffe7;
            text-shadow: 0 0 15px #00a1ff,
                0 0 30px #00a1ff;
        }
    </style>
</head>

<body>
    <label>
        <input type="checkbox" name="" />
        <span class="btn"></span>
        <i class="fa fa-power-off"></i>
    </label>
</body>

</html>